yes it has to be on a timer, I flood mine 4 times a day for 15 mins each
tinytoon Reviewed by tinytoon on . ebb n flow wus up yall i just build my first ebb n flow with a 10 gallon tubba wear on top of other one wit the flow and drain pipe. is pretty eazy to build but im i suppose to leave it running 24 hour ??? or do i needa time it like the drip system ??? and can i drown the the plant roots and raiped rooter???? and can i over feed ??? thanks im still new to the ebb n flow. im good with the DWC beside keeping the ph still. LOL Rating: 5